Black Screen Crash in Subnautica and Rainbow 6

This crash happens rarely in Rainbow 6 (High Settings) and always within the first 30 minutes of Subnautica (High Settings). The crash happens as follows: First the screen goes black and the audio still plays normally for a few seconds. Then the audio goes out and the computer requires a force shutdown.

I'm having this exact issue as well,i loose connection to my monitors while playing games.I have tried overclock/underclock,altered the the power and changed wattman states but nothing seems to fix it.

I have been trying to fix this issue on my off time after my last comment.

As an experiment, I've lowered the Power limit by 20%, the overall GPU frequency by 20%, and the maximum Memory frequency to 1850 Mhz. This seems to have fixed all my issues, and I haven't got the described issue since. The limits would probably be tweakable.